Iron triangle │ATH-WS660BT SOLID BASS wireless earmuffs subwoofer headphones

Equipped with wireless dedicated design Ø53mm deep motion drive unit Double-layered ear cushion made of double-layer cushioning material Provides approximately 40 hours of long-lasting wireless playback time Foldable compact structure Connect to wired mode when the battery is exhausted https://i.imgur.com/AVEuA9W.jpg 【Product specifications】 【headset】 Type: Closed moving coil type Drive unit: Ø53mm Output sensitivity: 100dB/mW Frequency response: 8~29,000Hz Impedance: 38Ω 【microphone】 Type: back pole type capacitor Directivity: omnidirectional Sensitivity: -44dB (1V/Pa, at1kHz) Frequency response: 50 ~ 4,000Hz [Communication Specifications] Communication method: Bluetooth standard specification Ver.4.1 Maximum communication distance: within 10m of good line of sight Communication frequency band: 2.4GHz (2.402GHz ~ 2.480GHz) Modulation method: FHSS Support Bluetooth protocol: A2DP, AVRCP, HFP, HSP Support code: Qualcomm® aptXTM audio, AAC, SBC Support content protection: SCMS-T Transmission band: 20 ~ 20,000 Hz 【other】 Power: DC3.7V lithium polymer battery (built-in) Charging time: about 5 hours Available time: continuous communication (when playing music, BT/ON, NC/ON): up to about 40 hours* Continuous standby: up to about 1000 hours (depending on the conditions of use.) Weight: about 220g Operating temperature range: 5 ° C ~ 40 ° C Accessories: USB cable for charging (30cm, USB Type-A / Micro USB Type-B) 1.2m wire [Product Warranty] Non-human damage to the original factory for one year (the warranty does not include earphone accessories) [Returns and Exchanges] 1. In accordance with the provisions of the Consumer Protection Law, consumers are entitled to the seven-day appreciation period of the goods (the non-trial period of the appreciation period). Since the earphones are personal hygiene products, they should be purchased as they are unpacked. Please confirm before unpacking, so as not to affect them. Self-interest 2. The return limit is brand new and unopened. 3. In case of new products, please inform the customer service to handle the replacement for you. 4. New product 瑕疵 exchange, please keep the outer packaging and contents of the accessories intact, if the packaging carton is dirty or severely torn, can not be restored to the original state, or the accessories are lost, can not accept the exchange 【Precautions】 1. Bluetooth headset related time varies depending on personal use, phone settings and ambient/temperature 2. Due to differences in computer screen settings and personal perception, the product images of this store are for reference only, subject to the actual product received. 3. If the product specifications are incorrect, they will be based on physical objects. 4. Please follow the operation instructions and precautions in the product manual before use. 5. If there are any errors in the above specifications, the information published by the original factory shall prevail.